@@ -2024,7 +2024,7 @@ static int iqs7222_parse_sldr(struct iqs7222_private *iqs7222,
error = fwnode_property_read_u32(sldr_node, "azoteq,slider-size", &val);
if (!error) {
- if (!val || val > dev_desc->sldr_res) {
+ if (val > dev_desc->sldr_res) {
dev_err(&client->dev, "Invalid %s size: %u\n",
fwnode_get_name(sldr_node), val);
return -EINVAL;
@@ -2043,6 +2043,13 @@ static int iqs7222_parse_sldr(struct iqs7222_private *iqs7222,
return error;
}
+ if (!(reg_offset ? sldr_setup[3]
+ : sldr_setup[2] & IQS7222_SLDR_SETUP_2_RES_MASK)) {
+ dev_err(&client->dev, "Undefined %s size\n",
+ fwnode_get_name(sldr_node));
+ return -EINVAL;
+ }
+
error = fwnode_property_read_u32(sldr_node, "azoteq,top-speed", &val);
if (!error) {
if (val > (reg_offset ? U16_MAX : U8_MAX * 4)) {
Select variants of silicon do not define a default slider size, in which case the size must be specified in the device tree. If it is not, the axis's maximum value is reported as 65535 due to unsigned integer overflow. To solve this problem, move the existing zero-check outside of the conditional block that checks whether the property is present. Fixes: e505edaedcb9 ("Input: add support for Azoteq IQS7222A/B/C") Signed-off-by: Jeff LaBundy <jeff@labundy.com> --- Changes in v3: - None Changes in v2: - Rebased to account for changes earlier in series drivers/input/misc/iqs7222.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)